This presentation will give you a basic understanding of Cloud Computing.

1. Cloud Computing
-Leading Facet of Networking
Prepared and Presented By : Gaurav Sinha

2. Outlines
 Introduction
 Myths & Facts
 What is cloud computing?
 Why cloud computing?
 Cloud Architecture
 Cloud Service Models
 Types of Cloud Storage
 Pros n Cons
 Conclusion
 Next Presentation
 Queries?

3. Introduction
 When you store your documents online instead of on your home computer, or
use webmail or a social networking site, you are using a “cloud computing”
service.
 If you are an organization, and you want to use, for example, an online
invoicing service instead of updating the in-house one you have been using for
many years, that online invoicing service is a “cloud computing” service.
"Cloud computing is a buzzword..."
"The concept, quite simply, is that vast computing resources will reside
somewhere out there in the ether (rather than in your computer room) and we'll
connect to them and use them as needed."
• - Jonathan Weber (The Times Online)

4. Myths & Facts
Myths
 Cloud computing will eliminate the need for IT personnel.
 Cloud computing will eliminate IT expense.
Facts
 Cloud technology is real.
 This technology should not be ignored.
 This presentation will assist you in understanding “The Cloud”.

5. What is Cloud Computing?
 Cloud computing describes a new supplement, consumption and delivery
model for IT services based on Internet, and it typically involves the provision
of dynamically scalable and often virtualized resources as a service over the
Internet.
 Cloud computing is comparable to grid computing, a type of computing where
unused processing cycles of all computers in a network are harnesses to solve
problems too intensive for any stand-alone machine.

6. Why Cloud Computing
 On demand self service
Customer can request and manage their own computing resources.
 Broad network access
Allows services to be offered over the internet or private networks.
 Resource pooling
customers draw from a pool of computing resources,usually in remote
data centres.
 Rapid elasticity
Services can be scaled larger or smaller.
 Measured service
use of service is measured and customers are billed accordingly.

7. Cloud Architecture

8. Cloud Service Models
SaaS
• Software as a
service
• Service
Applications,
typically
available via
the browser
• Pre-made
application
• Access to both
resources and
application.
PaaS
• Platform as a
service
• Hosted
application
environment
for building
and deploying
cloud
applications
• Access to
components
require to
develop and
operate
application.
IaaS
• Infrastructure
as a service
• Utility
computing
data center
providing on
demand server
resources
• Completely
outsources the
storage and
resources,
such as
hardware and
software.

9. Some Cloud Service Providers
Infrastructure as a
Service(IaaS)
Platform as a Service
(PaaS)
Software as a Service
(SaaS)
CONSUMEBUILD ON ITMIGRATE TO IT

10. Subscriber controls decreases
Cloud provider controls decreases

11. Types of Cloud Storage
Public Cloud
 Services are delivered to the client via the Internet.
 Services can be shared by various organizations.
 Access to the cloud space.
Example:
Amazon, Google, Microsoft,
Sales force

12. Private Cloud
 Services are managed and provided within the organization.
 There are less restriction on network bandwidth.
 Fewer security exposures and other legal requirements.
 More expensive and more secure.
Example:
HP data center, IBM, Sun,
Oracle, 3tera

13. Hybrid Cloud
 Combination of services provided from public and private Clouds.
 Hosting critical applications on private clouds.
 relatively less security concerns on public cloud.
Example:
ERP in Private cloud
and
Sales & Email on public

14. Pros and Cons
Pros
 Reduce E-Waste
 Reduce spending on technology
 Low up-front cost
 Improve accessibility and flexibility
 Less personal training is needed
 Monitor project more effectively
 Rapid deployment and customization
 Increased data reliability
 Allow for better audit trails

15. Cons
 Security & Privacy
Is it safe?
For Whom and at what level?
 Regulatory compliance: HIPPA, SOX etc
 Interoperability & Vendor Lock-In
 Lack of control
 Standardization
 Bandwidth could bust your budget
 Legal issues

16. Conclusion
Cloud Computing holds some strong promises
– Highly Available
– Dynamically allocate resources
– Pay only for resources that you use
If you are considering using the cloud,

17. Be certain that you identify
 what information you will be putting out in the cloud,
 who will have access to that information, and
 what you will need to make sure it is protected.
know your options in terms of
 what type of cloud will be best for your needs,
 what type of provider will be most useful to you, and
 what the reputation and responsibilities of the providers you are considering .

18. Next
 Challenges
 Security
 Migration
 Why migrate
 Should we migrate?
 Migrate to what?
 Amazon web services
 Google App Engine
 Windows Azure storage

19. Queries?